I did not try Impala ODBC Driver as that would involve I think ODBC Driver on the CDH side as well and our admin needs to be involved and they are not interested. Funny thing is I tried the same query next day and it worked.
Still 2 issues. A background query trying to retrieve table and column data keeps running for really long. I think TDP tried to retrieve information from all the schemas we have.
Also, the Editor keeps losing the default schema from the drop down at the top after you run a query. Initially, it defaults to whatever schema you are looking at in Object explorer on the left, but then it blanks out after the first query you run. You then have to reselect or use a USE schema_name statement, which does not work either. I have used that with Hortonworks HDP before, so not sure if CDH supports it or not or if it is a TDP issue as gives syntax error.